Evaluating pyrene toxicity on Arctic key copepod species Calanus hyperboreus

Rasmus Dyrmose Nørregaard, Torkel Gissel Nielsen, Eva Friis Møller, Jakob Strand, Laila Stougaard Kofoed Espersen, Malene Møhl

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Calanus hyperboreus is a key species in the Arctic regions because of its abundance and role in the Arctic food web. Exploitation of the off shore oil reserves along Western Greenland is expected in the near future, and it is important to evaluate the acute and chronic effects of oil emissions to the ecosystem. In this study C. hyperboreus females were exposed to concentrations of 0, 0.1, 1, 10 and 100 nM pyrene and saturated concentrations measured to ~300 nM. Daily quantification of egg and faecal pellet production showed significant decreases in the pellet production, while the egg production was unaffected. The hatching success was also unaffected, although the total reproductive output was reduced with increased pyrene concentrations. Accumulation of pyrene in the copepods was higher in feeding than starving females and only trace amounts of the phase I metabolite 1-hydroxypyrene, were found. Lowered reproductive output, reduced grazing, and reduced ability to metabolize pyrene suggest that oil contamination may constitute a risk to C. hyperboreus recruitment, energy transfer in the food web and transfer of pyrene to higher trophic levels
Original languageEnglish
JournalEcotoxicology
Volume23
Issue number2
Pages (from-to)163-174
ISSN0963-9292
DOIs
Publication statusPublished - 2014

Cite this

Nørregaard, R. D., Nielsen, T. G., Friis Møller, E., Strand, J., Espersen, L. S. K., & Møhl, M. (2014). Evaluating pyrene toxicity on Arctic key copepod species Calanus hyperboreus. Ecotoxicology, 23(2), 163-174. https://doi.org/10.1007/s10646-013-1160-z
Nørregaard, Rasmus Dyrmose ; Nielsen, Torkel Gissel ; Friis Møller, Eva ; Strand, Jakob ; Espersen, Laila Stougaard Kofoed ; Møhl, Malene. / Evaluating pyrene toxicity on Arctic key copepod species Calanus hyperboreus. In: Ecotoxicology. 2014 ; Vol. 23, No. 2. pp. 163-174.
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abstract = "Calanus hyperboreus is a key species in the Arctic regions because of its abundance and role in the Arctic food web. Exploitation of the off shore oil reserves along Western Greenland is expected in the near future, and it is important to evaluate the acute and chronic effects of oil emissions to the ecosystem. In this study C. hyperboreus females were exposed to concentrations of 0, 0.1, 1, 10 and 100 nM pyrene and saturated concentrations measured to ~300 nM. Daily quantification of egg and faecal pellet production showed significant decreases in the pellet production, while the egg production was unaffected. The hatching success was also unaffected, although the total reproductive output was reduced with increased pyrene concentrations. Accumulation of pyrene in the copepods was higher in feeding than starving females and only trace amounts of the phase I metabolite 1-hydroxypyrene, were found. Lowered reproductive output, reduced grazing, and reduced ability to metabolize pyrene suggest that oil contamination may constitute a risk to C. hyperboreus recruitment, energy transfer in the food web and transfer of pyrene to higher trophic levels",
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Nørregaard, RD, Nielsen, TG, Friis Møller, E, Strand, J, Espersen, LSK & Møhl, M 2014, 'Evaluating pyrene toxicity on Arctic key copepod species Calanus hyperboreus', Ecotoxicology, vol. 23, no. 2, pp. 163-174. https://doi.org/10.1007/s10646-013-1160-z

Evaluating pyrene toxicity on Arctic key copepod species Calanus hyperboreus. / Nørregaard, Rasmus Dyrmose; Nielsen, Torkel Gissel; Friis Møller, Eva; Strand, Jakob; Espersen, Laila Stougaard Kofoed; Møhl, Malene.

In: Ecotoxicology, Vol. 23, No. 2, 2014, p. 163-174.

Research output: Contribution to journalJournal articleResearchpeer-review

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T1 - Evaluating pyrene toxicity on Arctic key copepod species Calanus hyperboreus

AU - Nørregaard, Rasmus Dyrmose

AU - Nielsen, Torkel Gissel

AU - Friis Møller, Eva

AU - Strand, Jakob

AU - Espersen, Laila Stougaard Kofoed

AU - Møhl, Malene

PY - 2014

Y1 - 2014

N2 - Calanus hyperboreus is a key species in the Arctic regions because of its abundance and role in the Arctic food web. Exploitation of the off shore oil reserves along Western Greenland is expected in the near future, and it is important to evaluate the acute and chronic effects of oil emissions to the ecosystem. In this study C. hyperboreus females were exposed to concentrations of 0, 0.1, 1, 10 and 100 nM pyrene and saturated concentrations measured to ~300 nM. Daily quantification of egg and faecal pellet production showed significant decreases in the pellet production, while the egg production was unaffected. The hatching success was also unaffected, although the total reproductive output was reduced with increased pyrene concentrations. Accumulation of pyrene in the copepods was higher in feeding than starving females and only trace amounts of the phase I metabolite 1-hydroxypyrene, were found. Lowered reproductive output, reduced grazing, and reduced ability to metabolize pyrene suggest that oil contamination may constitute a risk to C. hyperboreus recruitment, energy transfer in the food web and transfer of pyrene to higher trophic levels

AB - Calanus hyperboreus is a key species in the Arctic regions because of its abundance and role in the Arctic food web. Exploitation of the off shore oil reserves along Western Greenland is expected in the near future, and it is important to evaluate the acute and chronic effects of oil emissions to the ecosystem. In this study C. hyperboreus females were exposed to concentrations of 0, 0.1, 1, 10 and 100 nM pyrene and saturated concentrations measured to ~300 nM. Daily quantification of egg and faecal pellet production showed significant decreases in the pellet production, while the egg production was unaffected. The hatching success was also unaffected, although the total reproductive output was reduced with increased pyrene concentrations. Accumulation of pyrene in the copepods was higher in feeding than starving females and only trace amounts of the phase I metabolite 1-hydroxypyrene, were found. Lowered reproductive output, reduced grazing, and reduced ability to metabolize pyrene suggest that oil contamination may constitute a risk to C. hyperboreus recruitment, energy transfer in the food web and transfer of pyrene to higher trophic levels

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DO - 10.1007/s10646-013-1160-z

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JF - Ecotoxicology

SN - 0963-9292

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